Pump



Oct. 4, 1938.

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D. J. REISS Filed July 6, 1957 PUMP 5 Sheets-Sheet l In uentor z wxzzAfiomcus Filed July 6, 1937 D. J. REISS 5 Sheets-Sheet 2 Inventor BaV/ZZ J 1319/55 B? imaai fih Attorneys Oct. 4, 1938.

D. J. REISS PUMP Filed Jul}, 6, 195'? 5 Sheets-Sheet 3 Inventor flaw/a51 26/35 Altarnew D. J. REISS PUMP Filed July 6, 1957 Oct. 4, 1938.

5 Sheets-Sheet 4 Inventor fia w'ci 1/71? 6/55 Attorneys D. J REISS PUMP5 Sheets-Shet 5 Filed July 6, 1957 Inven 0r flaw/ti Ji s/:95 By QM 4015-A itorneys Patented Oct. 4, 1938 UNITED STATES PATENT OFFICE 2 Claims.

This invention appertains to new and useful improvements in well pumpsand more particularly to a pump of the fluid pressure type whereby fluidcan be lifted from wells in a cheap and efllcient manner.

The principal object of the invention is to provide a fluid pressureoperated pump which is of simple construction and not susceptible to theready development of defects.

Another important object of the invention is to provide a pump which ispositive acting, wherein mechanical details are reduced to a minimum.

These and various other important objects and advantages of theinvention will become apparent to the reader of the followingspecification.

In the drawings:-

Figure 1 represents a side elevational view of p the assembly.

Figure 2 is a side elevational view of the assembly looking directlytoward the supply valve.

Figure 3 is a longitudinal sectional view.

Figure 4 is a horizontal sectional view on the line H of Figure 3.

Figure 5 is a horizontal sectional view on the line 55 of Figure 3.

Figure 6 is a horizontal sectional view on the line 6-6 of Figure 3.

Figure '7 is a horizontal sectional view on the line 1-1 of Figure 3.

Figure 8 is a longitudinal sectional view through the intermediatesection of the assembly.

Figure 9 is a side elevational view of the piston assembly.

Figure 10 is a fragmentary longitudinal sectional view through theintermediate section of the assembly with the mechanical parts shown.

Figure 11 is a fragmentary side elevational view of the upper section ofthe assembly with details removed.

Figure 12 is a sectional view through one of the couplings.

Figure 13 is a sectional view through the packing flange cap of one ofthe couplings, v

Figure 14 is a fragmentary side elevational view of the stationarybarrel. 4

Figure 15 is a side elevational view, partly in section showing theguide head of the stationary barrel.

Figure 16 is a side elevational view, partly in section showing thevalve means.

Referring to the drawings wherein like numerals designate like parts, itcan be seen that the assembly is made up of the intermediate sectiongenerally referred to by the numeral 5, the upper section 6 and thelower section 1. Couplings generally referred to by numerals 8 and 9 areprovided at the ends of the intermediate section 6 for connecting theends thereto.

Each of these couplings consists of a cylindrical 6 body Ill having acircumferentially disposed shoulder II for interposition between thecorresponding shell sections and also provided with the threadedportions |2-|3 for engagement into the adjacent shell sections, each ofthese coul0 plings having the bore H for receiving the piston sleeve ISon which the piston head I6 is located and also with the counterboredefining a pocket for the packing material |8. This with the internallythreaded cap I9 engaged over the 1|! reduced threaded portion 20 definesa packing gland at each of the couplings for the said piston tube l6.This piston tube is disposed around the stationary tube 2| which has itsupper end threadedly engaged into the header 22 at the 20 upper end ofthe section 6. This header 22 being provided with a laterally disposedleg 23 having the opening 24 therein for receiving the trip rod 25 whichis provided with the trip collars 26-2| thereon at opposite sides of thelaterally disposed 25 arm 26 which projects from the collar 29 on theupper end of the piston tube l5. This arm 28 has an opening therein forreceiving the trip rod .25, the lower end of the trip rod 25 being"threadedly engaged as at 36 into the upper valve 30 piston 3|. Thispiston operates in thevalve shell 32 which extends longitudinally of theintermediate section 5 and has the inlet 33 at its mid-point. Alsooperative in the piston shell 32,- is the valve piston 34 and thesepistons 3|34 35 are connected by the rod 35.

The upper and lower ends of the valve shell 32 communicate with theinterior of the section 5 through ports 36-31, below and above thecouplings 8-9, respectively, and at opposite sides of the piston head l6of the traveling piston shell l5, which operates in the section 5.

It can be seen in Figures 3 and 14, that the stationary tube 2| has apacking ring 38 at its lower end against which the piston tube l5 rides-A valve seat 39 is provided in the lower end 0! the stationary tube 2|and against this is seatable the valve 46.

The lower end of the piston tube 5 has the removable seat ll therein andwith this is engageo able the valve 42. 1

It can be seen, that as air or gas under pressure is admitted to thevalve shell 32, the valve piston 3| will be lifted so as to uncover theport 36. Fluid will exert its force against the piston head IS in adownward direction, forcing the piston tube I downwardly so as to lowerthe valve 42 into the fluid of the well. Obviously, as the lower end ofthe tube I5 is forced downwardly into the fluid of the well it willopen, admitting the fluid to be elevated into the lower portion thereof.

Reverse operation of the valve structure will cause the admitted fluidto enter under the piston head It and raise the piston tube i5 which, ofcourse, results in the closing of the valve 42 and the opening of thevalve lll as the fluid in the lower portion of the tube l5 rises intothe stationary tube 2|. As the flrst cycle begins to repeat and the tubel5 lowers, the valve 40 will close dropping fluid in the stationaryshell 2|, as the lower valve 42 opens to admit fluid of the well intothe lower portion of the piston tube l5.

While the foregoing specification sets forth the invention in speciflcterms, it is to be understood that numerous changes in the shape, sizeand materials may be resorted to without departing from the spiritandscope. of the invention as claimed hereinafter.

What is claimed is:-

1. A well pump comprising a stationary tube provided with a check valvein the lower portion thereof, a piston tube slidably disposed on thestationary tube and having its lower end depending below the valved endof the stationary tube,

the lower end of the piston tube provided with a check valve therein, achamber surrounding the said piston tube, a piston head on the pistontube. operative in the said chamber, and a fluid pressure control forthe said piston head, said control 5 consisting of a valve shell on theside of the chamber having ports communicating the interior of the shellwith the interior of the chamber at opposite sides of the piston head,and valve pistons operative in the said shell. l0

2. A well pump comprising a stationary tube provided with a check valvein the lower portion thereof, a piston tube slidably disposed on thestationary tube and having its lower end depending below the valved endof the stationary tube, 15

valve pistons operative in the said shell, and trip 25 means between thevalve pistons and the piston tube whereby the piston tube operates toset the said valve pistons.

DAVID J. REISS.

